NitrogenĀ gas that has been converted to a colourless liquid by cooling it to a temperature below 196ĀŗC.
Liquid is the highest purity form in which nitrogenĀ is supplied. It is also far more efficient to store nitrogenĀ as a liquid rather than as a compressed gas since each volume of liquid will give 682 volumes of gas when it is converted to gas at room temperature and atmospheric pressure.
Liquid nitrogenĀ is frequently used as a refrigerant in sub-zero treatingĀ and as a source of very pure nitrogenĀ gas. NitrogenĀ derived from liquid is very much heavier than air owing to its very low temperature.
Properties:
Boiling point
-196°C
Density
808kg/m3
Relative density
0.8 (Water = 1)
Ratio to volume of gas
1 : 682 (At room temperature)
Liquid nitrogen
NitrogenĀ gas that has been converted to a colourless liquid by cooling it to a temperature below 196ĀŗC.
Liquid is the highest purity form in which nitrogenĀ is supplied. It is also far more efficient to store nitrogenĀ as a liquid rather than as a compressed gas since each volume of liquid will give 682 volumes of gas when it is converted to gas at room temperature and atmospheric pressure.
Liquid nitrogenĀ is frequently used as a refrigerant in sub-zero treatingĀ and as a source of very pure nitrogenĀ gas. NitrogenĀ derived from liquid is very much heavier than air owing to its very low temperature.